1   /**
2    * Copyright (c) 2000-2009 Liferay, Inc. All rights reserved.
3    *
4    *
5    *
6    *
7    * The contents of this file are subject to the terms of the Liferay Enterprise
8    * Subscription License ("License"). You may not use this file except in
9    * compliance with the License. You can obtain a copy of the License by
10   * contacting Liferay, Inc. See the License for the specific language governing
11   * permissions and limitations under the License, including but not limited to
12   * distribution rights of the Software.
13   *
14   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20   * SOFTWARE.
21   */
22  
23  package com.liferay.portal.kernel.messaging;
24  
25  import java.util.Set;
26  import java.util.concurrent.ThreadPoolExecutor;
27  
28  /**
29   * <a href="SerialDestination.java.html"><b><i>View Source</i></b></a>
30   *
31   * <p>
32   * Destination that delivers a message to a list of message listeners one at a
33   * time.
34   * </p>
35   *
36   * @author Michael C. Han
37   */
38  public class SerialDestination extends BaseDestination {
39  
40      public SerialDestination(String name) {
41          super(name, _WORKERS_CORE_SIZE, _WORKERS_MAX_SIZE);
42      }
43  
44      protected void dispatch(
45          final Set<MessageListener> messageListeners, final Message message) {
46  
47          ThreadPoolExecutor threadPoolExecutor = getThreadPoolExecutor();
48  
49          Runnable runnable = new Runnable() {
50  
51              public void run() {
52                  for (MessageListener messageListener : messageListeners) {
53                      messageListener.receive(message);
54                  }
55              }
56  
57          };
58  
59          threadPoolExecutor.execute(runnable);
60      }
61  
62      private static final int _WORKERS_CORE_SIZE = 1;
63  
64      private static final int _WORKERS_MAX_SIZE = 1;
65  
66  }